Escape from a hostile computer system! Harvest data to create an armada of battle-processes to aid your escape! Take command directly and play the game as an RTS, or use the game’s built-in editor and compiler to write your own unit AI in a simplified version of C!

“The Open Sea” is a first real time strategy about the Golden Age of Piracy in the Caribbean sea, which is an open-source project. The settlement – the Atlantic Ocean. Note: the code browsing requires XNA Game Studio.

Unknown Horizons however is not an Anno emulator and you cannot play Anno with it. Unknown Horizons is not able and not supposed to use content from Anno. Therefore, you don’t need Anno to play Unknown Horizons. Unknown Horizons is based upon the FIFE game engine.

The Game is available for Windows, Linux and Macintosh. Source code available.

For the 15th Anniversary of Serious Sam Croteam released source code for Serious Engine v1.10! It’s the very same engine used for Serious Sam Classic: The First Encounter and The Second Encounter. Serious Engine v1.10 won’t produce top-notch graphics, but the source code is very well commented, easy to modify, and there are lots of user generated mods out there. This version has everything you need to build your own game – or just experiment. A Linux source code release is in the works too.

Since the Humble Indie Sales (The first Humble Indie Bundle from May 4 through May 11, 2010) surpassed the 1 million.. Authors of the games decided to release the source codes.. As far as i know only world of goo didn’t release the source code.